-65.59% is the change from 340 to 117
Calculation steps:
[( 117 - 340 ) ÷ 340] x 100 = -65.59%
Formula
Percentage change = [(117 - 340) / 340] x 100
Subtract the new number by the original number
117 - 340 = -223
-223 ÷ 340 = -0.6558823529411765
-0.6558823529411765 x 100 = -65.59%